#!/usr/bin/env ruby
############################################################################
#    Copyright (C) 2009 by Davide Monfrecola                               #
#    davide.monfrecola@gmail.com                                           #
#                                                                          #
#    This program is free software; you can redistribute it and#or modify  #
#    it under the terms of the GNU General Public License as published by  #
#    the Free Software Foundation; either version 2 of the License, or     #
#    (at your option) any later version.                                   #
#                                                                          #
#    This program is distributed in the hope that it will be useful,       #
#    but WITHOUT ANY WARRANTY; without even the implied warranty of        #
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         #
#    GNU General Public License for more details.                          #
#                                                                          #
#    You should have received a copy of the GNU General Public License     #
#    along with this program; if not, write to the                         #
#    Free Software Foundation, Inc.,                                       #
#    59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             #
############################################################################

# search on NUM_OF_SEARCH random text block from the input document
		
class SearchEngine

	# block: text block to search
	# index: position of the first word of the block
	def initialize(obj_ref, wlist, bsize)
		@wlist = wlist
		@bsize = bsize
		@doc_ref = obj_ref
		@searchString = []
		@tmpList = [] # temp URL list
		@urlManager = UrlManager.new()
	end #init

	def search(num_of_pages)
		randomIndex = []
		$num_of_searches.times do  																	# take random indexes from wlist
			randomIndex << rand(@wlist.length)
		end
		for index in randomIndex
			@searchString << @doc_ref.get_words(index, @bsize)
		end #for
	end
	
end #class